The importance of few side effects: Prurisol is likely to have FAR fewer side effects that current biologics, Brilacidin seems to be much safer than the now black-box-labeled quinolones (like Cipro: FDA says don't use unless the illness is life-threatening) and other antibiotics; and Kevetrin has transient and mild side effects if any, as compared to typical chemotherapy and radiation.

This is what happens if your drug works but has horrible side effects:

http://www.fiercebiotech.com/biotech/shock-fo...K3RqIn0%3D